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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4 mag, 29 km SSE of Salina Cruz, Mexico



Earthquake location 15.9211S, -95.1051WA light earthquake magnitude 4 (ml/mb) has occurred on Thursday, 29 kilometers (18 miles) from Salina Cruz in Mexico. The earthquake occurred at a depth of 22.59 km (14 miles) below the earth’s surface. All ids that are associated to the event: us2000bh52. Unique identifier: us2000bh52. Exact location of earthquake, longitude -95.1051 West, latitude 15.9211 North, depth = 22.59 km. The temblor was picked up at 17:26:16 / 5:26 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 26/10/17 / 2017-10-26 23:26:16 / October 26, 2017 @ 11:26 pm UTC/GMT.

Nearest cities/city/towns to hypocenter/epicentrum was San Francisco Ixhuatan, Jalapa, San Jerónimo Ixtepec (min 5000 pop). Epicenter of the event was 31 km (19 miles) from Salina Cruz (c. 73 600 pop), 58 km (36 miles) from Juchitán de Zaragoza (c. 67 600 pop), 47 km (29 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 73 km (45 miles) from San Jerónimo Ixtepec (c. 23 200 pop), 68 km (42 miles) from Unión Hidalgo (c. 12 700 pop), 72 km (45 miles) from Las Amilpas (c. 8 800 pop). Close country/countries that might be effected, Mexico (c. 112 469 000 pop).

Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been six, in the last 10 days ten, in the past 30 days thirty-nine and in the last 365 days two hundred and seventy-six earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 29 km SSE of Salina Cruz, Mexico.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -95.1051° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 15.9211° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 22.59 km Depth of the event in kilometers.
Place 29km SSE of Salina Cruz, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-26 23:26:16 Time when the event occurred. UTC/GMT
Updated 2017-11-05 05:47:50 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 246 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.977 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.36 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 98 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000bh52 Id of event.
Event Code 2000bh52 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000bh52, A comma-separated list of event ids that are associated to an event.

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